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4 results for “Spongiosarcinopsis”
FIGURE 4 in Spongiosarcinopsis terrestris gen. et sp. nov. (Chlorophyta, Chlorophyceae): a new genus of green algae from gray forest soil, Russia
FIGURE 4. Comparison of the ITS2 secondary structures of Spongiosarcinopsis terrestris ACSSI 023 (core structure) and Spongiochloris spongiosa SAG 2469. The CBCs are noted in boxes, CBCs of the conserved regions are marked with arrows, characteristic motifs at the apex of helix III ITS2 are underlined.
FIGURE 3 in Spongiosarcinopsis terrestris gen. et sp. nov. (Chlorophyta, Chlorophyceae): a new genus of green algae from gray forest soil, Russia
FIGURE 3. Phylogenetic analysis based on 18S rRNA gene sequences data demonstrating position of Spongiosarcinopsis gen. nov. within the family Protosiphonaceae. The tree is based on Bayesian topology. The support values are given for Bayesian posterior probabilities, and maximum likelihood (BI/ML). The cut-off values for probability and bootstrap are 0.5 and 50%, respectively. Hyphen (-) indicates unsupported node. Our reference strain ACSSI 023 (MF687231) is printed in bold. Black circles indicate which sequences originate from terrestrial (aerophytic/soil), white circles indicate which ones are from aquatic habitats (freshwater), gray circles indicate missing information.
FIGURE 2 in Spongiosarcinopsis terrestris gen. et sp. nov. (Chlorophyta, Chlorophyceae): a new genus of green algae from gray forest soil, Russia
FIGURE 2. TEM images of Spongiosarcinopsis terrestris, strain ACSSI 023. A. Single young ellipsoidal cell just derived from a zoospore or aplanospore. B. Single young sphaerical vegetative cell. Each young cell possess a chloroplast with one pyrenoid covered by a starch envelope. C. Single mature vegetative cell with a chloroplast containing three pyrenoids, each covered with numerous starch plates. D. Thick cell-walled mature cells combined into a diad resulting from desmoschisis. In addition to starch plates around pyrenoids, smaller starch grains are distributed in the chloroplast stroma. E, F Aplanosporangia containing aplanospores covered by thin cell walls. G. Released aplanospores. A = aplanospore; C = chloroplast, N = nucleus, P = pyrenoid, S = starch grains in the chloroplast stroma; SE = starch envelope of the pyrenoid, V = vacuole, W = cell wall. Arrows indicate thylakoids penetrating into the pyrenoid matrix. Scale bar is 1 μm for A–C and 2 μm for D–G.
FIGURE 1 in Spongiosarcinopsis terrestris gen. et sp. nov. (Chlorophyta, Chlorophyceae): a new genus of green algae from gray forest soil, Russia
FIGURE 1. LM micrographs of Spongiosarcinopsis terrestris, strain ACSSI 023. A. Young vegetative cells derived from zoospores. B. Spherical cell in actively growing culture. C. Aplanospores and aplanosporangium. D, E. Mature vegetative cells arranged in diad and tetrad aggregation in 3-month-old cultures. F. Akinetes and the accumulation of secondary carotenoids, which were detected by changes in the color of the algal mass to orange in old cultures (7 months). Scale = 10 μm.
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